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Pyrotechnic gas generating agent composition and preparation method thereof

A technology of gas generating agent and composition, which is applied in the field of pyrotechnic gas generating agent composition and its preparation, and pyrotechnic gas generating agent composition, which can solve the problems of affecting gas production performance and large water vapor content, and achieve increased storage Long life, good thermal stability, and improved safety in use

Active Publication Date: 2017-06-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of gas generating agent has a large gas production capacity and good chemical stability, but the gas product formed by the combustion of this type of gas generating agent contains a large amount of water vapor, which affects the gas production performance

Method used

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  • Pyrotechnic gas generating agent composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A pyrotechnic gas generant composition, based on the total mass of the gas generant composition as 100%, the mass percentages of its components are: 47.5% of 3,4-dinitrofurazanylfuroxan, LiNO 3 33.6%, Fe 2 o 3 3%, CuO2%, azotetrazolium biguanidine (GZT) 12.9% and phenolic resin 1%.

[0030] A preparation method of the above-mentioned pyrotechnic gas generant composition is as follows:

[0031] Step 1. Add LiNO 3 Ball milled in a ball mill at 200r / min for 30min; put 3,4-dinitrofurazanylfuroxan in a quartz mortar and grind for 20min, and the ground LiNO 3 And 3,4-dinitrofurazanyl oxide furazan is placed in desiccator to carry out drying; LiNO after drying 3 and 3,4-dinitrofurazanylfuroxan were passed through a 100-mesh sieve, and the sieve was repeated 3 times to obtain LiNO with a particle size of ≤0.15mm 3 And 3,4-dinitrofurazanyl oxide furazan with particle size ≤0.15mm;

[0032] Step 2. 20.4g LiNO with particle size≤0.15mm 3 , 28.8g 3,4-dinitrofurazanyl oxide...

Embodiment 2

[0034] A pyrotechnic gas generant composition, based on the mass of the gas generant composition as 100%, its composition and mass fraction are: 48% of 3,4-dinitrofurazanylfuroxan, NaNO 3 41%, Fe 2 o 3 2%, CuO 1%, Al(OH) 3 7% and phenolic resin 1%;

[0035] A preparation method of the above-mentioned pyrotechnic gas generant composition is as follows:

[0036] Step 1. Add NaNO 3 Ball milled in a ball mill at 200r / min for 40min; put 3,4-dinitrofurazanylfuroxan in a quartz mortar and grind for 20min, and the ground NaNO 3 And 3,4-dinitrofurazanyl oxide furazan is placed in a desiccator for drying; the NaNO after drying 3 and 3,4-dinitrofurazanylfuroxan were passed through a 100-mesh sieve, and the sieve was repeated 4 times to obtain NaNO with a particle size of ≤0.15mm 3 And 3,4-dinitrofurazanyl oxide furazan with particle size ≤0.15mm;

[0037] Step 2. 24.6g NaNO with particle size≤0.15mm 3 , 28.8g 3,4-dinitrofurazanyl oxide furoxan with a particle size of ≤0.15mm, ...

Embodiment 3

[0039] A pyrotechnic gas generant composition, based on the mass of the gas generant composition as 100%, its composition and mass fraction are: 3,4-dinitrofurazanylfuroxan 39%, KNO 3 41%, Fe 2 o 3 2%, CuO 2%, NaHCO 3 14% and rosin 2%;

[0040] A preparation method of the above-mentioned pyrotechnic gas generant composition is as follows:

[0041] Step 1. Put the KNO 3 Ball milled in a ball mill at 200r / min for 35min; put 3,4-dinitrofurazanylfuroxan in a quartz mortar and grind for 20min, and grind the KNO 3 And 3,4-dinitrofurazanyl oxide furazan is placed in a desiccator for drying; the KNO after drying 3 and 3,4-dinitrofurazanylfuroxan were passed through a 100-mesh sieve, and the sieve was repeated 3 times to obtain KNO with a particle size of ≤0.15mm 3 And 3,4-dinitrofurazanyl oxide furazan with particle size ≤0.15mm;

[0042] Step 2. 24.6g KNO with particle size≤0.15mm 3 , 23.4g 3,4-dinitrofurazanyl oxide furoxan with particle size ≤0.15mm, 1.2g Fe 2 o 3 , 1....

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Abstract

The invention relates to a pyrotechnic gas generating agent composition and a preparation method thereof and belongs to the technical field of gas generating agent compositions. The pyrotechnic gas generating agent composition is composed of 3, 4-dinitrofurazanofuroxan, Fe2O3, CuO, oxidant, catalyst, cooling agent and binder. The preparation method includes: sufficiently mixing the oxidant, 3, 4-dinitrofurazanofuroxan, the catalyst and the cooling agent, and then sieving to obtain well-mixed powder; dissolving the binder in an organic solvent, adding into the powder for granulation, and drying to obtain solid particles; tabletting the obtained solid particles to obtain the pyrotechnic gas generating agent composition. The pyrotechnic gas generating agent composition is high in gas generating efficiency, generated gas is pure and free of environment pollution, content of water vapor generated by burning the generated gas is extremely low, using safety is improved, and the pyrotechnic gas generating agent composition has great application prospect.

Description

technical field [0001] The invention relates to a pyrotechnic gas generating agent composition and a preparation method thereof, in particular to a pyrotechnic gas generating agent composition using 3,4-dinitrofurazanylfuroxan as a combustible agent, belonging to the gas generating agent composition field of agent technology. Background technique [0002] Pyrotechnic gas generating agent is a kind of pyrotechnic agent that can generate a large amount of gas when it burns. It is used in automotive airbags, fire extinguishing devices, space airbag systems, soft landings of unmanned aerial vehicles and spacecraft, low-density explosives, and the wingspan of loitering bombs. In addition, gas generating agents have been expanded to include fruit and vegetable preservation, deep-water sinking fishing, rapid inflation of civil aviation emergency safety slides, emergency braking systems for railway transportation, emergency closing systems for oil and gas pipelines, aircraft pilot s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06D5/06C06B25/00C06B29/00C06B31/12
CPCC06B25/00C06B29/00C06B31/12C06D5/06
Inventor 韩志跃杨月桢杜志明张宇鹏姚谦
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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